MP2365 데이터 시트보기 (PDF) - Monolithic Power Systems
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MP2365 Datasheet PDF : 11 Pages
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MP2365 – 3A, 28V, 1.4MHz STEP-DOWN CONVERTER
ELECTRICAL CHARACTERISTICS
VIN = 12V, C1 = 10µF, C2 = 47µF, L = 4.7µH and TA = +25°C, unless otherwise noted.
Steady State Operation
VOUT = 1.8V, IOUT = 1.5A
Steady State Operation
VOUT = 1.8V, IOUT = 3A
Peak Current vs
Duty Cycle
8.0
VOUT
VOUT
7.5
AC Coupled
AC Coupled
20mV/div.
20mV/div.
7.0
6.5
VSW
VSW
10V/div.
10V/div.
6.0
IINDUCTOR
2A/div.
400ns/div.
IINDUCTOR
2A/div.
400ns/div.
5.5
5.0
0
20
40
60
80
DUTY CYCLE (%)
VOUT
AC Coupled
50mV/div.
IINDUCTOR
1A/div.
ILOAD
1A/div.
Startup Through Enable
VOUT = 3.3V, I = 1.5A (Resistance Load)
Startup Through Enable
VOUT = 3.3V, I = 3A (Resistance Load)
VEN
5V/div.
VEN
5V/div.
VOUT
1V/div.
VSW
10V/div.
IINDUCTOR
2A/div.
4ms/div.
VOUT
1V/div.
VSW
10V/div.
IINDUCTOR
2A/div.
4ms/div.
Shutdown Through Enable
VOUT = 3.3V, I = 1.5A (Resistance Load)
VEN
5V/div.
VOUT
1V/div.
VSW
10V/div.
IINDUCTOR
2A/div.
Shutdown Through Enable
VOUT = 3.3V, I = 3A (Resistance Load)
VEN
5V/div.
VOUT
1V/div.
VSW
10V/div.
IINDUCTOR
2A/div.
MP2365 Rev. 0.91
www.MonolithicPower.com
4
7/10/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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